I am male, 28 years old. The current condition is urethritis, the urethra is itchy, sometimes painful, uncomfortable, but the urine is still clear and there is no fluid as well as pus. The situation lasted for more than a month, but due to the epidemic situation, I did not have the opportunity to visit the doctor, I only had monogamous intercourse, urethritis causes itching, painful urination, how should I treat it?